Bag making machine



Aug. 23, 1932. POTDEVlN 1,873,634

BAG MAKING MACHINE Filed April 4, 1931 2 Sheets-Sheet 1 I N VEN TOR.

BY qfiw je MM ATTORN S.

23, 1932- A. POTDEVIN BAG MAKING MACHINE Filed April 4, 1951 2Sheets-Sheet 2 w w Q R w n. a W. Z T N W, M 2 mm #1 m a" 0Q 41 V 3 M A WA TTORNEYS.

Patented Aug. .23, 1932 tat .AJJOLPH POTDEVIN, OF GARDEN CITY, NEW YORK,ASSIGNOR TO POTDE'VIN MACHINE COMPANY, OF BROOKLYN, NEW YORK, ACORPORATION OF NEW YORK BAG MAKING- MACHINE Application filed April 4,

This invention relates to apparatus for use in connection with themaking of paper bags and is primarily directed to an apparatus forpunching holes through the bag for the reception of the cord which incertain types of paper bags is employed as a handle.

The invention also provides a construction for cutting through the wallsof the bag to provide for the insertion of stifiening material such ascardboard in the top of the K further object of my invention is theprovision of apparatus for the urposes above described which are made ajustable so that the various parts can be adjusted relatively to eachother and so that the parts may be adjusted to accommodate the machinesto bags of difierent sizes.

In the drawings:

Fig. 1 is a section on the line l-1 of Fig 4;

Fig. 2 is a part sectional elevational view of a detail of the punch anddie mechanism of Fig. 1;

Fig. 2A is a section on line 2A-2A of Fig. 2;

Fig. 3 is a section on the line 33 of Fig. 4;

Fig. 4 is an elevational view of the machine;

Fig. 5 is a perspective of one type of bag produced by this machine;

Fig. 6 is another view of the bag of Fig. 5;

Fig. 7 is a view of another type of bag produced by this machine; and 3KFig. 8 is another view of the bag of Fig. 7

Before going into a description of the machine or apparatus of thisinvention, I shall refer to Figs. 5, 6, 7 and 8 of the drawings of thebag itself. v

The bag shown in Figs. 5 and 6 is punched through both walls thereof asshown at 4 and 5 and is creased transversely between the outer row ofholes 4 and 5 and the next adjacent row as shown at 6.

In its completed condition a cord 7 is passed through the holes 4 and 5in the manner indicated in Fig. 6, the top edge of the bag having justbeen folded inwardly along the crease 6, as also seen in Fig. 6.

Referring to the bag of Figs. 7 and 8, it

at 11 with a curved out.

1931. Serial No. 527,685.

will be seen that this bag also is provided with holes 4 and 5 punchedthrough both Walls thereof. This bag likewise is creased at 8, 9 and 10and is cut through as shown It is to be noted that the creases 8 and 9and the creases 9 and 10 do not meet so as not to weaken the paper atthe ends of the curved cut 11. This bag has its outer edges foldedinwardly, as shown in Fig. 8, along the creases 8, 9 and 10 and so cord12. The cord 12 is threaded therethrough as shown in Fig. 8, the curvedcut 11 after the edges of the bag have been folded in permitting of theinsertion of a cardboard or other suitable stiffening material 13.

The locations of the holes 4 and 5 in the two bags of Figs. 5 and 8 arethe same or may be the same and this permits of the use of the samepunching mechanism for punching these holes. However, when the bag is tobe finished as in Figs. 7 and 8 a diiferent type of creasing mechanismis necessary so far as the 'creaser blade is concerned, three bladesbeing employed in place of a single blade which will produce the crease6 and it is necessary to to produce cutting mechanism for making thecurved cut 11, which mechanism is not used when operating on the bag ofFig. 5.

It will be appreciated, therefore, that the same apparatus is employedfor certain of the operations to be performed at all times, whileadditional apparatus is necessary when shifting from the type of bagshown in Fig. 5 to that shown in Fi 7, for instance.

Accordingly I ave shown in the drawings of the apparatus all of themechanism required for both types of operation, it being appreciated, aswill be brought out hereinafter, that only a part of this apparatus isemployed in each instance.

Referring to the drawings of the machine, it will be seen that 14 and 15designate two shafts in alignment with each other and arranged insuperimposed relation.

On the upper shaft 14 are a series of discs designated 16, 17, 18, 19,20 and 21. These discs are all provided with a collar equipped with aset screw designated 8 by which the discs are held to the shaft and bywhich the discs are adjustably held to the shaft 14, this arrangementpermitting of the adjustment of all of these discs about the axis of theshaft 14.

On the lower shaft '15 are a. series of discs 22, 23, a pair of discs24, 25, another pair of discs 26, 27 and discs 28, 29. As will be seenfrom the drawings discs 22 and 23 immediately underlie discs 16 and 17and discs 28 and 29 immediately underlie discs or rollers 20 and 21.These discs are all adjustably held to the shaft 15 by set screws 30whereby the discs are adjustable about the axis of the shaft.

The discs 18 and 19 on the upper shaft 14 are equipped with punchesshown in detail in Figs. 1 and 2 and indicated in Fig. 4.

As will be seen from Fig. 1, the face of each of the discs 18 and 19 isprovided with a series of holes 31 spaced circumferentially of the disc.These holes are for the reception of bolts 32 by which brackets 33 areadjustably attached to the faces of the discs. Provision of a pluralityof holes 31 permits of coarse adjustment or setting of the brackets 33while for a finer adjustment the brackets are provided with a cylinder34which receives the bolts 32 already referred to.

I have shown three sets of the brackets 33 for purposes of illustration,it being appreciated of course that this number can be varied asdesired. Each of the brackets carries a punch 35 equipped as shown inFig. 2 with an ejector 36 which may be in the form of a rubber sleeve,for instance. Each one of the punches 35 is adjustable endwise in thebracket and is held in adjusted position by a set screw 37.

The punch is carried in a block 38 which permits of lateral adjustmentof the punch, the block being carried in a slot 39 and secured inposition by a bolt 40.

It will be appreciamd from the description thus far given that thepunches 35 may be adjusted into any position desired due to theadjustable mounting of the discs 18 and 19 on the shafts 14, the adjustability of the brackets 33 on these discs and the adjustability ofthe punches in the brackets. This gives great flexibility to the machineand permits it to be adjusted to accommodate bags of many differentsizes.

The dies which are provided for cooperation with the punches 33 arecarried by the lower discs 24, 25 and 26, 27.

Referring to Fig. 1 it will be seen that the face of the disc 25adjacent the companion disc 24 is provided with a circumferential groove41, the inner face of disc 24 being provided with a similar groove. Inthese grooves are die blocks 42, it being appreciated that there will bea die block for each of the punches 35. The discs are clamped togetherby bolts 43 so as to clamp the die blocks. This construction permits ofthe die blocks being shifted circumferentially of the discs so as tobring them into proper register with the punches 35. It is to beunderstood of course that the discs 26 and 27 are similarly constructed.

Extending across the discs 16, 17, 18, 19, 20 and 21 is a creaser bar 44which is set into a slot provided in the faces of the discs 16, 17, 20and 21. One or more of the discs may be provided with a counter-sunkhole 45 through two punches 35 which punch two sets of holes 4 and 5 atthe outer end of the bag so that the crease will lie in the position ofthe crease 6 of Fig. 5 intermediate these two sets of holes.

In operation the punches 35 are set in their desired relative positions,the die blocks 42 being correspondingly set and the bags run through themachine to punch the holes 4 and 5 and on the same passage of the bagcreasing the bag at 6.

This apparatus is for punching the holes and creasing the bag asillustrated in Fig. 5.

When it is desired to punch the bag, crease it as indicated at 8, 9 and10 and to cut the half-round cut 11 therein, as illustrated in Fig. 7,apparatus additional to that so far described is employed. Thisapparatus 1 have illustrated in Fig. 3 and it is also shown in Fig. 4.

Referring to these figures of the drawings, it will be seen that theupper shaft 14 intermediate the discs 18 and 19 is equipped with amember designated 50 clamped to the shaft 14 by bolts 51 so as to beadjustable on the shaft and so that this additional apparatus may bereadily placed in position or removed from the machine entirely. Thismember 50 in part comprises an arm 52 extending radially with respect tothe shaft 14 and equipped at its outer end with a curved knife 53, thisknife it will be understood being curved to the curvature of the cut 11of Fig. 7.

The lower shaft 15 intermediate the discs 25 and 26 is equipped with amember 54 adjustably clamped to the shaft by bolts 55, this member beingprovided with an arm 56 extending outwardly from the shaft and providedon its outer end with a block 57. The surface 58 of this blockcooperates with the knife 53. This block is also provided on its facewith a groove 59 cooperating with a creaser blade 60 which is mounted inthe outer end of the member 52 on the upper shaft 14. It is to be notedthat the creaser blade 60 is slightly shorter than the diameter of theknife 53 so that the creaser blade will crease the bag along the crease9 of Fig. 7 intermediate the ends of the cut 11.

Extending across the faces of the discs 16 and 17 and in line with thecreaser bar 60 is a creaser block equipped with a creaser blade or bar61, this blade terminating short of the end of the knife 53. The discs20 and 21 are likewise equipped with a similar creaser bar 62 whichterminates short of the other end of the knife 53.

The lower discs 22, 23 and 24 are equipped with a block 63, this blockbeing provided with a groove 64 for cooperating with the bar 61. Thediscs 27, 28 and 29 are likewise equipped with a similar block 65provided with a groove 66 for cooperation with the creaser bar 62.

When the apparatus just described is to be employed the creaser block 44and its blade 47 are removed from the machine and creaser blocks 61 and62 are placed in their respective grooves in the members16, 17 and 20,21. The members 50 and 54 are then applied to the shafts 14 and 15 andclamped in place thereon so as to bring the knife 53 into properposition with respect to the member 58. The

'punches 35 are also adjusted so as properly to locate these puncheswith respect to the knife 53. If a bag is now run through the machinethe seam will be punched as shown at 4 and 5 in Fig. 7 and the creaserblades 61, 60 and 62 will crease the bag at 8, 9 and 10 as shown in Fig.7 and the knife 53 will cut through the wall of the bag in a curved cutas shown at 11 in Fig. 7.

From all of the foregoing it will be appreciated that I have provided anapparatus suitable for operating on the bags of Figs. 5 and 7 in whichthe discs 18 and 19 and the equipment carried thereby and the discs 24,25 and 26, 27 with their equipment are employed along with the creaserblade 47 in I operating on the bag in Fig. 5.

4 It will be appreciated that when the bag of Fig. 7 is to be operatedon then the creaser blade 47 is removed, the punches 35, however, beingretained together with the die blocks 42 and the additional equipmentshown in Fig. 3 placed in position, including the creaser blades 61, 60and 62 and the cooperating blocks 63 and 64 and the member 58.

It will be appreciated, furthermore, that by the adjustability of thevarious devices employed in this apparatus the change from one type ofoperation to another type may be readily and accurately made.

It will be appreciated, furthermore, that this adjustability of thevarious parts of the apparatus enables the apparatus to handle bags ofvarying sizes and that the holes 4 and 5 may be varied in theirpositions both longitudinally and transversely of the bag and withrespect to each other asdesired.

It will be appreciated that the location of the score on the bag can bevaried as desired and that more than one crease may be provided ifnecessary.

What ll claim is 1. In a ba making machine the combination of punc esfor punching holes through the walls of a bag tube, dies cooperatingwith said punches, rotary mounts for said punches and cooperating dies,said punches and dies being individually adjustable in said mountscircumferentially thereof, and said mounts being adjustable along theiraxes of rotation to obtain a variation in the position of the holesrelatively to each other transversely as Well as lengthwise of the bag.

2. In a bag making machine the combination of a pair of rotatablemembers, punches carried thereby for punching holes through the walls ofa bag tube, cooperating dies, a pair of rotatable members carrying saiddies, and means for adjusting said rotatable members lengthwise of theiraxes of rotation and said punches and dies circumferentially of saidrotatable members to vary the relative position of. the holes punchedtransversely as well as longitudinally of the bag tube.

3. In a bag making machine the combination of a rotatable disc, aplurality of brackets, the face of said disc being rovided with aplurality of spaced holes, bolts passing through said brackets and intosaid holes whereby the brackets are adjustably secured to the face ofsaid disc, each bracket being slotted for the reception of said securingbolts whereby a fine adj ustment of the brackets circumferentially ofthe discs is obtained, a punch carried in each bracket, a mount for eachpunch whereby the punch can be adjusted parallel to the axis of rotationof the disc and also radially of the disc.

4. In a bag making machine the combination of a disc, a creaser blade onthe periph ery of said disc, and a plurality of punches carried on theface of said disc and adjustable circumferentially thereof with respectto said creaser blade.

5. In a bag making machine the combination of a disc carrying a punch, acooperating die, a pair of discs clamped to each other for clamping saiddie, saidpunches and die being adjustable circumferentially of theirrespective discs.

6. In a bag making machine the combination of a rotatable disc, a punchcarried thereby, said punch being adjustable circumferentially of saiddisc and said disc and punch being adjustable along the axis of rotationof said disc, a cooperating die, a pair of discs clamping said die, saiddie being adjustable circumferentially of the clamping discs and saidclamping discs and die being adjustable along the axis of rotation ofthe clamping discs.

7. In a bag making machine the combination of a pair of clamping discs,a, unch die, the adjacent faces of said discs eing cut back to provide agroove for the reception of said punch die and permitting of said diebeing adjusted circumferentially of the clamping discs, said discs anddie being adjustable along the axis of rotation of the discs, a seconddisc and a punch carried by said second disc and cooperating with saiddie, said last mentioned disc being adjustable along the axis ofrotation of the punch-carrying disc and the punch being adjustablecircumferentially of its carrying disc.

8. In a bag making machine the combination of a rotatable member, ashaft carrying the same and on which said member is adjustably mounted,a curved knife carried by said member, punch carrying discs on saidshaft at each side of said knife-carrying member, and rotatable dies ateach side of said knife and coo crating with said punches.

9. In a bag ma ing machine the combination of a rotatable shaft, a pairof spaced discs carried on said shaft, punches carried on said discs, aknife-carrying member on said shaft intermediate said discs, a second'shaft, discs carried thereby, dies cooperating with said punches carriedby said last-mentioned discs, creaser blades at each side of said knife,and an intermediate creaser blade, said creaser blades being inalignment and all of the creaser blades terminating short of theextremities of said knife.

This specification signed this 2 day of April, 1931.

ADOLPH PQTDEVJIN.

